Дослідження ефективності алгоритмів керування та якості відтворення аудіо для mp3-плеєра на базі ARDUINO

Abstract

This paper presents the development and experimental analysis of a portable MP3 player based on the Arduino platform. The study addresses the challenge of implementing high-quality audio playback while maintaining responsive control on an 8-bit microcontroller with limited resources. A comparative analysis of two control strategies is conducted: a simple loop-based approach versus an interrupt-driven algorithm for button handling. The hardware architecture utilizes an Arduino Nano, a DFPlayer Mini module for hardware MP3 decoding, and a set of control buttons. Experimental results demonstrate that the interrupt-driven approach significantly improves system responsiveness, reducing button latency from 150 ms to under 20 ms. The DFPlayer Mini module effectively offloads decoding tasks, achieving high audio quality with minimal CPU overhead. The proposed system provides a cost-effective solution for customized audio applications in educational and embedded systems contexts